Exact(4)
It is seen that, when Tx3 dedicates more power for cooperation by increasing ρ1 = ρ2, R1 improves and R3 decreases.
We see that when Tx3 dedicates parts of its power for cooperation, i.e., ρ1 = ρ2 = 0.5, the rates of the primary users (R1, R2) increase, while R3 decreases.
where l nr is the distance between the RS-r and the MS-n, and P tnr is the transmitted power for cooperation.
It can be seen that as ρ1 = ρ2 increases, the bound on R3 becomes more restrictive while the sum-rate bounds become looser; because Tx3 dedicates parts of its power for cooperation.
Similar(4)
The amount of power allocated for cooperation by users and is proportional to and, respectively.
Thus, by using Equations 1 and 2, the power spent for cooperation may be represented by: P_{text{tcop}}=eta_{n omega)} l_{n omega)}^{kappa} N_{0}.
It is seen that by increasing ρ1 = ρ2, the bound on R1 + R3 becomes looser and R1 improves, while R3 decreases due to the more power dedicated for cooperation.
Compaoré, a former soldier who seized control in a coup in 1987, was well regarded by foreign powers, for his cooperation in battling al Qaeda-linked insurgent organizations in West Africa.
Related(1)
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